diff --git a/plugins/woocommerce/phpcs.xml b/plugins/woocommerce/phpcs.xml
index c4b4a07e733..85134575ec9 100644
--- a/plugins/woocommerce/phpcs.xml
+++ b/plugins/woocommerce/phpcs.xml
@@ -102,4 +102,16 @@
 	<rule ref="Squiz.Commenting.FileComment.Missing">
 		<exclude-pattern>tests/php/</exclude-pattern>
 	</rule>
+
+	<rule ref="WordPress.NamingConventions.ValidVariableName">
+		<exclude-pattern>tests/php/src</exclude-pattern>
+	</rule>
+
+	<rule ref="Squiz.Commenting">
+		<exclude-pattern>tests/php/src</exclude-pattern>
+	</rule>
+
+	<rule ref="WordPress.WP.GlobalVariablesOverride">
+		<exclude-pattern>tests/php/src</exclude-pattern>
+	</rule>
 </ruleset>
diff --git a/plugins/woocommerce/src/Internal/Admin/Orders/MetaBoxes/CustomerHistory.php b/plugins/woocommerce/src/Internal/Admin/Orders/MetaBoxes/CustomerHistory.php
index ca55277fe0b..04d56c3f947 100644
--- a/plugins/woocommerce/src/Internal/Admin/Orders/MetaBoxes/CustomerHistory.php
+++ b/plugins/woocommerce/src/Internal/Admin/Orders/MetaBoxes/CustomerHistory.php
@@ -35,8 +35,8 @@ class CustomerHistory {
 	 */
 	private function display_customer_history( int $customer_id ) {
 		// Calculate the data needed for the template.
-		$order_count   = wc_get_customer_order_count( $customer_id );
-		$total_spent   = wc_get_customer_total_spent( $customer_id );
+		$order_count = wc_get_customer_order_count( $customer_id );
+		$total_spent = wc_get_customer_total_spent( $customer_id );
 
 		$args = array(
 			'order_count'   => $order_count,
diff --git a/plugins/woocommerce/src/Internal/Integrations/WPConsentAPI.php b/plugins/woocommerce/src/Internal/Integrations/WPConsentAPI.php
index 3484fc21a84..f9854933679 100644
--- a/plugins/woocommerce/src/Internal/Integrations/WPConsentAPI.php
+++ b/plugins/woocommerce/src/Internal/Integrations/WPConsentAPI.php
@@ -37,7 +37,7 @@ class WPConsentAPI {
 	 * @return void
 	 */
 	protected function on_plugins_loaded() {
-		// Include integration to WP Consent Level API if available
+		// Include integration to WP Consent Level API if available.
 		if ( ! $this->is_wp_consent_api_active() ) {
 			return;
 		}
diff --git a/plugins/woocommerce/src/Internal/Orders/SourceAttributionController.php b/plugins/woocommerce/src/Internal/Orders/SourceAttributionController.php
index 79e6f11f074..221eb19d5a9 100644
--- a/plugins/woocommerce/src/Internal/Orders/SourceAttributionController.php
+++ b/plugins/woocommerce/src/Internal/Orders/SourceAttributionController.php
@@ -22,6 +22,9 @@ use WP_User;
  * Class SourceAttributionController
  *
  * @since x.x.x
+ *
+ * phpcs:disable WordPress.PHP.DisallowShortTernary
+ * phpcs:disable Generic.Commenting.DocComment.MissingShort
  */
 class SourceAttributionController implements RegisterHooksInterface {
 
@@ -56,8 +59,9 @@ class SourceAttributionController implements RegisterHooksInterface {
 	 *
 	 * @internal
 	 *
-	 * @param LegacyProxy              $proxy  The legacy proxy.
-	 * @param WC_Logger_Interface|null $logger The logger object. If not provided, it will be obtained from the proxy.
+	 * @param LegacyProxy         $proxy      The legacy proxy.
+	 * @param FeaturesController  $controller The feature controller.
+	 * @param WC_Logger_Interface $logger     The logger object. If not provided, it will be obtained from the proxy.
 	 */
 	final public function init( LegacyProxy $proxy, FeaturesController $controller, ?WC_Logger_Interface $logger = null ) {
 		$this->proxy              = $proxy;
@@ -183,13 +187,40 @@ class SourceAttributionController implements RegisterHooksInterface {
 			true
 		);
 
+		/**
+		 * Filter the lifetime of the cookie used for source tracking.
+		 *
+		 * @since x.x.x
+		 *
+		 * @param int $lifetime The lifetime of the cookie in months.
+		 */
+		$lifetime = (int) apply_filters( 'wc_order_source_attribution_cookie_lifetime_months', 6 );
+
+		/**
+		 * Filter the session length for source tracking.
+		 *
+		 * @since x.x.x
+		 *
+		 * @param int $session_length The session length in minutes.
+		 */
+		$session_length = (int) apply_filters( 'wc_order_source_attribution_session_length_minutes', 30 );
+
+		/**
+		 * Filter to allow tracking.
+		 *
+		 * @since x.x.x
+		 *
+		 * @param bool $allow_tracking True to allow tracking, false to disable.
+		 */
+		$allow_tracking = wc_bool_to_string( apply_filters( 'wc_order_source_attribution_allow_tracking', true ) );
+
 		// Pass parameters to Order Source Attribution JS.
 		$params = array(
-			'lifetime'      => (int) apply_filters( 'wc_order_source_attribution_cookie_lifetime_months', 6 ),
-			'session'       => (int) apply_filters( 'wc_order_source_attribution_session_length_minutes', 30 ),
+			'lifetime'      => $lifetime,
+			'session'       => $session_length,
 			'ajaxurl'       => admin_url( 'admin-ajax.php' ),
 			'prefix'        => $this->field_prefix,
-			'allowTracking' => wc_bool_to_string( apply_filters( 'wc_order_source_attribution_allow_tracking', true ) ),
+			'allowTracking' => $allow_tracking,
 		);
 
 		wp_localize_script( 'woocommerce-order-source-attribution-js', 'wc_order_attribute_source_params', $params );
@@ -295,7 +326,8 @@ class SourceAttributionController implements RegisterHooksInterface {
 	/**
 	 * Save source data for an Order object.
 	 *
-	 * @param WC_Order $order The order object.
+	 * @param array    $source_data The source data.
+	 * @param WC_Order $order       The order object.
 	 *
 	 * @return void
 	 */
diff --git a/plugins/woocommerce/src/Internal/Traits/SourceAttributionMeta.php b/plugins/woocommerce/src/Internal/Traits/SourceAttributionMeta.php
index 38505ce8c95..06c265fa957 100644
--- a/plugins/woocommerce/src/Internal/Traits/SourceAttributionMeta.php
+++ b/plugins/woocommerce/src/Internal/Traits/SourceAttributionMeta.php
@@ -1,12 +1,4 @@
 <?php
-/**
- * Order source attribution meta.
- *
- * @since x.x.x
- *
- * phpcs:disable Generic.Commenting.DocComment.MissingShort
- */
-
 declare( strict_types=1 );
 
 namespace Automattic\WooCommerce\Internal\Traits;
@@ -21,6 +13,8 @@ use WP_Post;
  * Trait SourceAttributionMeta
  *
  * @since x.x.x
+ *
+ * phpcs:disable Generic.Commenting.DocComment.MissingShort
  */
 trait SourceAttributionMeta {
 
@@ -53,11 +47,13 @@ trait SourceAttributionMeta {
 	private $field_prefix = '';
 
 	/**
+	 * Get the device type based on the other meta fields.
+	 *
 	 * @since x.x.x
 	 *
-	 * @param array $values
+	 * @param array $values The meta values.
 	 *
-	 * @return void
+	 * @return string The device type.
 	 */
 	protected function get_device_type( array $values ): string {
 		$detector = new MobileDetect( array(), $values['user_agent'] );
@@ -267,7 +263,7 @@ trait SourceAttributionMeta {
 			$values['device_type'] = $this->get_device_type( $values );
 		}
 
-		// Set the origin label
+		// Set the origin label.
 		if ( array_key_exists( 'type', $values ) && array_key_exists( 'utm_source', $values ) ) {
 			$values['origin'] = $this->get_origin_label( $values['type'], $values['utm_source'] );
 		}
diff --git a/plugins/woocommerce/src/Internal/WCCom/TrackingController.php b/plugins/woocommerce/src/Internal/WCCom/TrackingController.php
index 34a17b09fcc..fc338ba77be 100644
--- a/plugins/woocommerce/src/Internal/WCCom/TrackingController.php
+++ b/plugins/woocommerce/src/Internal/WCCom/TrackingController.php
@@ -12,6 +12,8 @@ use Automattic\WooCommerce\Internal\Traits\ScriptDebug;
  * Class TrackingController
  *
  * @since x.x.x
+ *
+ * phpcs:disable Generic.Commenting.DocComment.MissingShort
  */
 class TrackingController implements RegisterHooksInterface {
 
@@ -25,6 +27,8 @@ class TrackingController implements RegisterHooksInterface {
 	/**
 	 * WCCOMTracking init.
 	 *
+	 * @internal
+	 *
 	 * @param FeaturesController $features_controller Features controller.
 	 */
 	final public function init( FeaturesController $features_controller ) {
diff --git a/plugins/woocommerce/src/Utilities/VersionUtil.php b/plugins/woocommerce/src/Utilities/VersionUtil.php
index 249f765b859..0a793304918 100644
--- a/plugins/woocommerce/src/Utilities/VersionUtil.php
+++ b/plugins/woocommerce/src/Utilities/VersionUtil.php
@@ -9,6 +9,8 @@ use Automattic\WooCommerce\Proxies\LegacyProxy;
  * Class VersionUtil
  *
  * @since x.x.x
+ *
+ * phpcs:disable Generic.Commenting.DocComment.MissingShort
  */
 class VersionUtil {
 
@@ -19,8 +21,9 @@ class VersionUtil {
 	 * Init this class instance.
 	 *
 	 * @since x.x.x
+	 * @internal
 	 *
-	 * @param LegacyProxy $proxy
+	 * @param LegacyProxy $proxy The legacy proxy instance.
 	 *
 	 * @return void
 	 */
diff --git a/plugins/woocommerce/templates/order/customer-history.php b/plugins/woocommerce/templates/order/customer-history.php
index b4546e0a195..4755812a1e6 100644
--- a/plugins/woocommerce/templates/order/customer-history.php
+++ b/plugins/woocommerce/templates/order/customer-history.php
@@ -1,15 +1,16 @@
 <?php
-declare( strict_types=1 );
 /**
  * Display the Customer History metabox.
  *
  * This template is used to display the customer history metabox on the edit order screen.
  *
- * @see Automattic\WooCommerce\Internal\Admin\Orders\MetaBoxes\CustomerHistory
+ * @see     Automattic\WooCommerce\Internal\Admin\Orders\MetaBoxes\CustomerHistory
  * @package WooCommerce\Templates
- * @version 8.2.0
+ * @version 8.4.0
  */
 
+declare( strict_types=1 );
+
 defined( 'ABSPATH' ) || exit;
 
 /**
diff --git a/plugins/woocommerce/templates/order/source-data-fields.php b/plugins/woocommerce/templates/order/source-data-fields.php
index bb71f462498..654e7486f1f 100644
--- a/plugins/woocommerce/templates/order/source-data-fields.php
+++ b/plugins/woocommerce/templates/order/source-data-fields.php
@@ -1,15 +1,16 @@
 <?php
-declare( strict_types=1 );
 /**
  * Display the Source Data metabox.
  *
  * This template is used to display the order source data metabox on the edit order screen.
  *
- * @see Automattic\WooCommerce\Internal\Orders\SourceAttributionController
+ * @see     Automattic\WooCommerce\Internal\Orders\SourceAttributionController
  * @package WooCommerce\Templates
- * @version 8.2.0
+ * @version 8.4.0
  */
 
+declare( strict_types=1 );
+
 defined( 'ABSPATH' ) || exit;
 
 /**
diff --git a/plugins/woocommerce/tests/php/src/Internal/Orders/SourceAttributionControllerTest.php b/plugins/woocommerce/tests/php/src/Internal/Orders/SourceAttributionControllerTest.php
index 57f4adcf172..f12b9244fc5 100644
--- a/plugins/woocommerce/tests/php/src/Internal/Orders/SourceAttributionControllerTest.php
+++ b/plugins/woocommerce/tests/php/src/Internal/Orders/SourceAttributionControllerTest.php
@@ -15,17 +15,6 @@ class SourceAttributionControllerTest extends WP_UnitTestCase {
 
 	protected SourceAttributionController $attribution_fields_class;
 
-	/**
-	 * This method is called before the first test of this test class is run.
-	 *
-	 * @codeCoverageIgnore
-	 *
-	 * @return void
-	 */
-	public static function setUpBeforeClass(): void {
-		parent::setUpBeforeClass();
-	}
-
 	/**
 	 * Sets up the fixture, for example, open a network connection.
 	 *